| Popis: |
The various drawbacks of complex myoelectric prosthetic hands have led to low adoption rates by upper limb amputees, with upwards of 35% pediatric device rejection and 23% adult device rejection rates. This paper describes the design of a novel 50th percentile female sized single-actuator anthropomorphic myoelectric hand that was created to address issues commonly associated with myoelectric prosthesis. The hand uses underactuated coupling mechanisms to enable three distinct passively-adaptive grasp types, from a single DC motor and single input control, selected through a simple manual reconfiguration of the digits. The hand was evaluated in a preliminary assessment that included benchtop evaluation and a five subject able-bodied combined Box and Blocks and SHAP test using a bypass socket to evaluate effectiveness on activities of daily living. The able-bodied subject testing results are presented and compared to published SHAP results from commercial powered hook, single-actuator anthropomorphic and multi-actuator anthropomorphic devices. |
